concert venue location. About American Airlines Center. American Airlines Center (AAC) is a multi-purpose arena, located in the Victory Park neighborhood, near downtown Dallas, Texas. American Airlines Center serves as the home to the Dallas Mavericks and the Dallas Stars. The arena is also used for concerts and other live entertainment.
The crest of a wave is the point on the medium that exhibits the maximum amount of positive or upward displacement from the rest position. Points C and J on the diagram represent the troughs of this wave. The trough of a wave is the point on the medium that exhibits the maximum amount of negative or downward displacement from the rest position.
In this manner the crest travels along the spring as shown in Figure 10-4(D) and (E). A trough, or downward displacement, formed at 2 travels along the spring in a similar fashion. A single nonrepeated disturbance such as a single crest or a single trough is called a single-wave pulse or, simply, a pulse. The displacement of the particles of the medium (the coiled spring) caused by the pulse is perpendicular to the direction in which the pulse travels.